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https://issues.apache.org/jira/browse/KYLIN-1833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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fengYu updated KYLIN-1833:
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Attachment: 0001-KYLIN-1833-union-query-get-error-result.patch
patch for kylin-1.3.0, do not allocate OLAPRel.OLAPImplementor every time in
OLAPToEnumerableConverter.implement, move it to threadlocal virable.
> union operation will cause error result
> ---------------------------------------
>
> Key: KYLIN-1833
> URL: https://issues.apache.org/jira/browse/KYLIN-1833
> Project: Kylin
> Issue Type: Improvement
> Components: Query Engine
> Affects Versions: v1.3.0, v1.5.2
> Reporter: fengYu
> Assignee: fengYu
> Attachments: 0001-KYLIN-1833-union-query-get-error-result.patch
>
>
> query like this will get error result :
> select * from (
> select 'b', count(1) from kylin_sales where lstg_format_name >= 'Auction'
> union all
> select 'a', count(1) from kylin_sales where lstg_format_name >= 'Others'
> union all
> select 'c', count(1) from kylin_sales where lstg_format_name >= 'FP-GTC'
> ) order by 1
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